Viktoriya Petrenko defeated Anastasia Nefedova 2-6 6-2 6-4 in the W15 Antalya 31 quarter-final on hard. The upset overturned the form book — Anastasia Nefedova came in leading the head-to-head 2–0. Viktoriya Petrenko claimed a first win over Anastasia Nefedova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-12-10 | W15 Cairo 19 | R16 | clay | Anastasia Nefedova | 7-6(5) 6-1 |
| 2021-12-02 | W15 Cairo 18 | R16 | clay | Anastasia Nefedova | 6-7(2) 6-1 6-3 |